Ok...so ive been lusting over this shoe since it came out. I found a few pairs on eBay here & there over the years, but now decided I finally need to grab me a pair. Well...i found a black pair on eBay for $250 so far... They are a size 7....i normally wear an 8 in Gucci. I know im probably pushing my luck here, but I remember reading somewhere that this shoe runs big...now, the question is how big? Will the 7 fit or am i better off with a 7.5 or stay at an 8?